from the statement coming out of the white house, i'm not sure they will. >> chris: senator john mccain, pushing president obama to intervene in syria for two years, called this week after findings the assad regime has used chemical weapons. time for our sunday group. brit hume, fox news senior political analyst, amy walter of the cook political report, bill kristol from "the weekly standard," and charles lane of the "washington post." fair to say president obama has put himself in a box on syria. he kept talking for months about red lines, game changers, but he's clearly mindful of the bad intelligence that led to the invasion of iraq, and it's also clear, he's never wanted to get involved in syria. is there a graceful way out? >> what he's trying to do now is insist on ironclad proof. you wonder if he doesn't want an affidavit signed by bashar assad himself saying, yes, we did indeed use sarin gas on those people. short of that, i don't think he's going to do anything. the situation is so well advanced now. might have been different if we moved in there earlier. a president who didn't